Talking with a friend & colleague at work, I heard about Weblate. It seems to be an open-source software allowing multiple users to achieve a multi-language translation. I don't technically knows it, but as far as I understand it, i guess it would be possible for Arcen to use it (alongside mantis, forum and wiki) for fan-made translation of their games. I remember of some discontinued efforts for a French port "mod" of AI War. I would happily contribute to it myself, and I feel there is a community willingness to do so, but refrained by the lack of official and technical Arcen's support. I'm not criticizing, though: I understand such burden is far beyond the expected gain for a small not-AAA studio as Arcen. All I hope is that Weblate (or any sort of similar technical support for translation) would allow Arcen to allow its community to provide translations for its games.

I took brief look over the installation of it and it seems like it won't be easy to install, and it would require the installation of a lot of packages we don't have installed already, which introduce more security risks. I'm definitely not saying no to it from my end of things, but if there is another similar service out there that people know about (Preferably PHP based), that would be amazing.